Talk of Economic Opportunity for the Continent Eclipsed by Questions on Ebola, Ukraine and 'Inversions'

WASHINGTON—President Barack Obama at a news conference on Wednesday discussed international and domestic challenges confronting the U.S., offering hope that a recent outbreak of the deadly Ebola virus is containable, questioning the patriotism of companies using a loophole to avoid taxes and expressing hope for a sustained cease-fire in Gaza.

Mr. Obama, speaking at the end of a U.S.-Africa Leaders' Summit in Washington, D.C., led off with remarks about the emergence of a new, more prosperous Africa, but talk of economic...